Pipe-joint for floating-dry-dock pontoons.



No. 762,872. PATENTED JUNBJ2-1, 1904.

' N. A. BERNBR.

- PIPE JOINT FOR FLOATINGDRY DOGK PDNTOONS.

APPLIGAiIION FILED NOV. 7. 1903.

N0 MODEL.

UNITED STATES Patented June 21, 1904.

PATENT OFFICE.

NILS ANTON BERNER, OF SPARROVVS POINT. MARYLANDQ" PIPE-JOINT FORFLOATlNG-DRY-DOCK PONTOONS.

SPECIFICATION forming part of Letters Patent No. 762,872, dated June 21,1904.

Application filed November 7, 1903. $erial No. 180,204. (No model.)

To all whom it may concern:

Be it known that I, NILs ANTON BERNER, a citizen of the United States,residing at Sparrows Point, in the county of Baltimore and State ofMaryland, have invented certain new and useful Improvements inPipe-Joints for Floating-Dry-Dock Pontoons, of which the following is aspecification.

My invention relates to an improvement in pipe connections betweenpontoons for floating dry-docks, the object being to connect the tion,and Figs. 2 and 3 are end views of the joint.

A A represent pontoon-walls, which may be constructed in the usualmanner. The one to the left may represent an end pontoon and the one tothe right a center pontoon. The usual openings 1 1 are provided in thepontoon-walls at points opposite each other. I A cast-iron box 2 2 issecurely bolted to the center pontoon in alinement with the opening 1,this box preferably being radially ribbed to give it strength andprovided at its outer end with an annular groove 3, in which is held arubber packing 4,

the opening 1 and sleeve 5 of the end pontoon,

and this gland tapers slightly, and. between it and the bore of thesleeve and the opening 1 a brass bushing 7 is screwed or otherwisefastened to the gland 6 to prevent the gland'6 and the sleeve 5 fromrusting together and at the same time, by giving the gland largerdiameter, prevent barnacles and dirt on the outer part of the gland tointerfere with its motion.

A rubber packing-ring 8 is clamped securely in place at the jointbetween the opening 1 .and the brass bushing 7 by means of a metal ring9, which latter is bolted or otherwise secured to thewall of thepontoon, the inclininginner surface 10 of this ring serving to compressthe rubber packing-ring 8 and form a tight joint. The pipe 11 issimilarly packed in the gland by means of a metal ring 12 and rubberpacking-ring 13, held in place by bolts extending into the flange of thegland 6. The outer end of gland 6 isforced against the rubberpacking-ring 4 of the female section of the joint by nuts 14 on thebolts 15, the bolts being held securely in the wall of the pontoon. Thenuts 16 on the bolts 15 are for backing the gland 6.

On each side of the joint or connection the pipe-line is provided with avalve placed inside in each pontoon, and by these valves the water iskept out of the pipeswhen the joint is disconnected. In this way an airand water tight joint is formed for the pipes, and the connection orjoint thus formed is of few parts, easily assembled and held in place,thus saving time and expense in the coupling up and. construction of theparts and at the same time affording an effectual joint between theadjacent pontoons.

It is evident that slight changes might be resorted to in the form andarrangement of the several parts described withoutdeparting from thespirit and scope of my invention, and

hence I do not wish to limit myself to the exact construction herein setforth; but,

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is V 1. The combination with two pontoons, ofa joint or connection comprising a male and female gland, one of whichis adjustable.

2. The combination with two pontoons, of a joint or connectioncomprising a male and groove therein, with a packing-ringheld in saidgroove, of a gland adjustably supported 5 in the other opening, a pipeextending into the gland and means for packing the joints water-tight.

In testimony whereof I have signed my name t0 this specificationinpresence of two wit 2O nesses.

NILS ANTON BERNER.

Witnesses:

E. WALTON BREWINGTON, W. N. FINLEY.

